"Critical thinking" is like blinders. The wearer only sees the subjective viewpoint that he has been taught.  It is a popular form of arrogance to ignore all that doesn't conform. Truth is objective. Humility is a wisdom which enables objectivity.

Proverbs 29:23 A man's pride shall bring him low: but honour shall uphold the humble inspirit.
Matthew 18:4 Whosoever therefore shall humble himself as this little child, the same is greatest in the kingdom of heaven.

The greatest threat to mankind is ego.